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900 PREMIUM

Absolute encoders for heavy duty industries

With the Premium 900 series we take the starting point in our experience for heavy duty applications, and rise to a new level when it comes to functionality.

Machines are becoming more and more advanced in classic industrial applications. More complex motions need to be monitored in order to achieve full process control. To meet this increasing demand the 900 series is based on absolute scanning which enables position feedback with high resolution.

With rising demands on machine efficiency the reliability of each component is critical. The 900 series therefore offers increased performance when it comes to enduring conditions like high temperatures and moisture or vibration and shock.

The encoder series is available with different communication interfaces such as EnDat, SSI, PROFIBUS and DRIVE-CLiQ. It is also possible to have a combination encoder with a separate incremental output. All to achieve a reliable motion feedback at all times.

Premium 900 series

Technical data
Diameter	100 mm
Vibration	200 m/s²
Shock	1500 m/s²
Shaft load radial	400 N
Shaft load axial	125 N
Encapsulation level	IP67
Temperature	-20 .. +85 ºC

Contactless encoder with increased scanning distance

The 2000 series is Leine & Linde’s series of bearing-less encoders for large shafts. The concept consists of a rotating ring and a fix scanning unit which detects the speed through contactless scanning.

”Our customers like the principle of contactless scanning”, says Per-Johan Ahlström who is product manager for Leine & Linde’s speed sensors. “The solution is immune to mechanical wear as it has no bearings or other contact surfaces. And that suits the heavy industry where you normally find big stresses on the machinery.”

Now Leine & Linde introduces several technical upgrades on the product series. The upgrades consist of an increased installation distance between ring and scanning unit, and also an increased scanning frequency to allow a higher shaft speed.

Incremental encoders for use in functional safety applications

Leine & Linde has for many years supported our customers with information regarding our encoders and their input within different application for best use. We are therefore now ready to take the next step forward and help our customers succeed with the encoders in functional safety applications, which are referring to human safety according to the Machinery Directive 2006/42/EC. The incremental encoders from Leine & Linde are an important part of safety applications regarding speed feedback. Therefore we are now offering our customers the reliability values required to calculate on a functional safety system where our encoders are used as the input components.

Available for SIL2 or PLd applications

The reliability value we provide for our encoders is either the MTTFd value for the performance level, PL, according to EN ISO 13849-1 or the PFHd value for the safety integrity level, SIL according to IEC 61508. These values are available for our incremental analogue and digital encoders within the 500 and 800 series. This information together with the reliability information of the complete functional safety system provides the estimation of the risk reduction level of it. A common use of our incremental encoders are in SIL2/PLd applications, however you can achieve different levels of risk reduction depending on the encoder input and the system architecture, from a minimum level of SIL1/PLc to a maximum level SIL3/PLe.

For Leine & Linde the goal within the field of functional safety is to support our customer with the right information, to create an understanding for what functional safety is really all about and how we can be a part of it together with our customers.

Robust encoders

The best encoders are those you never have to think about. Those that simply do their job – year after year. Leine & Linde develops and manufactures customised encoder solutions for demanding environments, advanced measuring systems for accurate feedback of speed and position.